I cannot stress enough how much we liked and enjoyed our 1-week summer vacation here! Specifically:
1) The Complex: This Marriott-operated resort (with all the quality you would expect from them) is awesome, there is something for everyone in the family, but especially for the kids: pools, playgrounds, courts, gardens, restaurant, bar, mini-market (expensive, though), bbq grills, activities, complimentary transportation to nearby places, you name it! You could easily spend days without having to leave the complex.
2) The units: Just as described, clean, fully equipped, everything in working condition, spacious. Depending on availability, you could have some great views as well!
3) The area: Very beautiful, clean, and quiet (except perhaps for the sports cars you can hear at the distance, but that was a plus for me), a mix between resorts and residences. The beach at Crystal Cove State Park is a 12-13 minute walk (downhill), just across the scenic Pacific Coast Highway (CA-1), and downtown Newport Beach, with all the shops, bars, restaurants, etc. is a 10 minute drive.
4) Brandon: Efficient and effective. He managed to accommodate my party of 14 in minutes, just 2 days before arriving! Very easy to keep in touch with, responding messages and inquiries immediately, very professional. It's a shame we didn't have a chance to meet personally, I certaily would consider him as a host in the future.
All in all, an excellent experience that I do not hesitate to recommend, especially if you are traveling with kids!